What was found
DURING COMPLIANCE OF CRJ200 JOB CARD 53-160-604, "DETAILED INSPECTION OF THE FS 409.0 +128 FRAME AND CAP AFT ANGLES AT STR 21 LEFT AND RIGHT"; A CRACK WAS FOUND AT THE BOTTOM OF THE RBL 18 VERTICAL POST ON THE OB SIDE. THE CRACK ORIGINATES FROM THE BOTTOM OF THE POST BENEATH THE BOTTOM MOST RIVET AND MOVES UPWARD THROUGH THE FIRST RIVET AND TERMINATES BETWEEN THE FIRST AND SECOND RIVET CRACK REPAIRED IAW REO 601R-53-41-0056 REV. F